Type-writing machine.



H. CRUTOHLEY.

TYPE WRITING MACHINE.

APPLIUATION FILED JUNE 11, 1910.

1,067,645, Patented July 15, 1913.

2 SHEETSSHEET 1.

H. CRUTGHLEY. TYPE WRITING MACHINE.

APPLIUATION FILED JUNE 11, 1910.

Patented July 15, 1913.

2 SHEETS-SHEET 2.

- UNITED STATS I HARRY CRUTCHLEY, or JERSEY CITY, NEW JERSEY, ASSIGNOR TO UNDEB'WOOD -TYPEWBITEBQQMBANKOF NEW YORK, N. Y., A oonronArion or DELAWARE.

353T CUP? Tyre-WRITING MACHINE.

'Specification of Letters Patent; Patented} Ji ly 15 19,13.

Application filed June 11, 1910. Serial No. 566,283.

To all whom it may concern: Be it known that I, HARRY CRU'ronLnv, a citizen of the United. States, residing in J ersey City, in the county of Hudson and State of New Jersey, have invented certain new Machines, of which the following is a specification.

The main object of this invention is to provide improved "and simplified mechanism for indicating that the lower edge ofthe work sheet has nearly reached'the printing line.

A latch on the paper carriage is connected with a paper-controlled trip and operates to automatically lock the carriage against its return to the beginning of a new line of writing, Whenever the bottom edgeof the work sheet has advanced past the trip.

Other features and-advantages will hereinafter appear.

In the accompanying drawings, Figure 1 is a front elevation, showing one embodiment ofthe invention applied to an Underwood writing machine. Fig. 2 is a perspective view, parts being broken away, showing the lock in efi'ective position. Fig. 3 is end view, showing the latch released by the paper to free the carriage. Fig. 4 is a detail sectional view, showing the releasing lever for the locking mechanism ininoperati-ve position. Fig. 5 is asirnilar view, showing the releasing lever in operative position.

Fig. 6 is a view similar to Fig. 3, showing the Latch locking the carriages ainst return to the beginning of'a line, t e platen being in normal position. Fig.7 is a simiiar View, showing the piston in 11.11 lines shifted to upper case positiom'full linesindicating the position of the parts when the letter-spacing rack-lever is operated to release the latch from the shiztt rail, the dotted lines showing the locked positions of the I parts.

A carriage 1, movable back and forth on the frame 2 of an Underwood writing 1112b chine, supports a plat n journaled by an axle 4 in platen frame ends 5, which are connected by a tie rod (3. Said carriage is drawn in letter-spacing direction by a spring 7, and is fed step-by-step by an escapement mechanism including a pinion 8 in mesh with a letter-spacing rack 9 carried by arms 19, pivotally mounted at 11 upon the carriage. The pinion -8 in feeding turns with an escapement wheel 40 which is controlled bydcgs 41 operated by the type through a universal bar not shown. The depression of a finger lever 12 releases the rack 9 from Its pinion 8. and useful Improvements in Type-Writing The platen frame is loosely mounted on the carriage and has a roll 1% to ride upon a shift rail 15 carried by elbow levers 1'6 pivoted at 17, saidlevers, when operated by the usual shift key (not shown), being efiective toshift the platen frame relatively to the carriage 1, to enable the upper case characters on the type bars 13 (see Fig.7 to strike against the platen. Said platen frame has a hook 20 depending from the, tie rod 6 and curving beneath the shift rail 15. A lever 21 operates a slide 22, to turn the platen ;3. When the carriage 1 reaches the end of a line 0t writing, the lever 21 is op-' erated toadvance the sheet to the next line,

the carriage being returned by the same movement, to the beginning of the next line.

To indicate when thelower edge of the work sheet has approached nearly to the serted and carried around the platen, contacts with the free end of the finger 29 and crowds it out of the groove; such movement of the finger being transmitted to the dog 25 to'rock it to idlev position, where it is maintained as long as the work sheet intervenes.

between the (Fig. 3).

The groove '30 is formed near one end of the platen, but the 25 is located subgroove and the finger or trip ,stantially centrally of the platen frame, to

accommodate the position the rack 28 on the usual rail 15, the dog being hence effective at any point in the travel of the carriage. The rod or 32, xfixed in hangers 33 swinging -apon the fixed shaft 3- connects the-finger 29 and dog 25, the dog being slot-ted, as (at 35, to aecommodatev thecnd of said connecting rod. The finger and do arepreferably mounted introntof the shift rail 15, and both rock rearwareiiy to carriage. The finger 29 isfasttqa hanger,

.33. The dog is supported .indepenflentlyfiof the remainder of the-lineindicatingimecha nisin, whereby to relieve said; mechanism from strain when it is attempted toreturnthe carriage to the beginning of a line' after the latch 25 has made contact with the rack28.

Assuming that the carriage has reached the end of its letter-spacing movement, and that ginning of a line.

the bottom edge of the work sheet is adjacent the finger or trip 29, theoperator employs the line space lever 21 to advance the paper and also to return the carriage to the beturning the platen, causes the bottom edge of the work sheet to pass the trip 29, whereupon a counterweight '31 (on arm 31 fixed to a hanger 33) automatically causes the free endof the trip to fall into the groove 80,and swings the rod 32 to set the dog 25 into the rack 28, thereby locking the carri'age against a returnto the beginning of a new line, (Fig. 6). The arrest of the car riage notifies the operator that the work sheet is nearly'used up. 1

Incase it is desired to add one or more linesupon the sheet,the operator can return the carriage to the beginning of 'a line by depressing" the carriage-releasinglever 12, which swings the letter-spacing rack 9 out of engagement with the escapementpinion 8. This raises'the arm 31 (said arm having dropped upon the-space rack 9, when the trip 29 entered r groove 30), and swings rod 32 to disengage the dog 25 from the rack 28, and release the carriage for return movement.

The shifting of the platen toppper case position (Fig 7 shifts the arm 31 away from the letter-spacing rack 9, (see dotted lines, Fig. 7). To releasethe latch when the platen is in uppercase position, one of the rack-supporting arms 10 is provided with anarm 38, which, when the rack 9 is I lifted, strikes a releasing finger 39, consisting of an'extension of rod 32; said releasing finger being moved into the path of said rocker arm 38 when the platen isshifted. The rocker arm causes the connecting-rod 32 to swing far enough to free the dog 25 from rack 28.

The line-indicating mechanism may be held inoperative, whenever desired, by a lever 36, journaledon support 34 to strike rod 32 and swin to idle position see'Fig. 5). The lever may be frictionally held in effective position, by forming it of resilient material and'p'roviding thereon 'a head 37 to bear against one ofthe platen frameends 5, (Fig. 1).

Since the strain placed on the carriage when. attempting to return it to the beginning of a line is sustained by the inde- The lever, however, in.

. engage the latter to turn the latch- ,jpendently supported dog 25, the other parts of the device need not be made strong and heavy, and the necessity is avoided of em ploying' a heavy counterweight or spring to actuate the trip. 'By mounting the (log on the shiftable platen frame and arranging that it shall engagethe shift rail 15, the carriage maybe locked when the platen is in either upper or lower case position.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thusdescribed my invention, I claim: i

1. In a typewriti'ng machine, the combination with a frame, a carriage traveling back and forth thereon, a platen frame comprising a platen mounted on the carriage and 'means to raise and lower the platen, of a latch effective to lock the carriage against return movelnen t by engagement with a rack. shifting with the platen irrespective of the position of the platen, and a. paper-controlled'trip connected with the latch toihold it idle until the bottom edge of the work sheet passes said trip.

2. In a typewriting machine, the combination with a frame, acarriage riding back and forth thereon, a platen framemounted on and shiftable relatively to the carriage, a platen in the platen frame, and platen-shifting means including a shift rail, of a latch on the laten frame. a rack-on the shift rail by. the latch to lock the carriage agalnst return movement, irrespective of the position of the platen frame, and a papercontrolled trip connected with the latch.

3. In a typewr'iting machine, the combination with a frame, a carriage traveling i thereon, anescapement on the frame,'a space rack on the carriage engaging 'the, escapement to feedthe carriage in letter-spacing direction, and a finger piece to release the lock the carriage againist return movement. a paper controlled trip? connected with the latch to operate the latter, and an arm lying in the path of release movement of the space rack when the latch is in operative position to effect the release of the latch when the rack from the escapement, of a latch to rack is released from its escapement. q

nation with a frame, a carriage to travel memesback and forth thereon, and an es'ca-pement,

of a paper-controlled lock to prevent return movement of the carriage, a linger piece-to release the carriage from its escapenient, and means actuated by the operation of the tin get piece to more the locl: to idle position to permit the carriage to return to the beginning of a line.

nation with a frame, a carriage to travel hacltand forth thereon, mechanism to feed the carriage step-hy-step including a racl: on the carriage releasahly engaging a pinion on the frame, a shiftable platen frame comprising a platen nonnted on the carriage, means to shilt the platen, of a paper-controlled latch. carried by the platen frame to lock the carriage against return movement, a linger piece to release the letter-spacing rack from the escapeinent pinion. a rocker arm connected to be operated with the rack, and a releasing finger connected with the latch to be brought into the ath of the rocker arm when the platen l one its positions, to eiiect the release of the latch when the letterepacing rack i released from its pinion.

'7. In a typewriting'machine, the combination with a frame, a carriage n'iovahle hack and forth thereon, an escapement mechanism. means (lisengageahly connecting the carriage With said escapement mechanism. a platen frame comprising a platen on the carriage, and means" to shift the platen frame, of a paper-controlled loci; to prevent return movement of the carriage when the lower edge of a sheetnears the printing line, and a lock-releasing device ,rendered operative when the platen is in escapenient mechanism,

one of its positions, to release the look upon the disengagement oi the carriage and 'its In a typewriting machine,- the combia platen frame comprising a platen on the carriage. the platen frame and platen being movable to different case-shift. positions, and a'n-escapeinent including a letter-spacing rack on the carriage meshing with a pinion on the frame, of an indicating mechanism comprising a latch connected with the platen frame, and constantly tending to interlock with a rack associated with the frame, a trip lying in the path of the Work sheet and connected with the latch to hold it idle while the sheet remains in contact with the trip, an arm connected with the latch and operated by the release of the letter-spacing racl: from the pinion, when the platen is. in one of its case-shift positions, to disengage the latch from its rack, a releasing finger connected with the latch and lz-ron ht into the path of a rocher arm connects with said letter-spacing rack to free the latch when the platen" frame o. In a typewriting machine, the cothbilatch dependent, upon the Work sheet for locking the carriage against return. movement, and a key having means to release said carriage from both said letter-feeding mechanism and said latch.-

10. in a typewriting machine, the combination' with platen a carria e letterfeeding mechanism, and aecarriage-releasing mechanism including a linger-piece, 0t platen-rotating mechanism for line-teeding the 'worl; sheet, means controlled by the advance of the work sheet by said platenrotat-ing mechanism to lock the carriage after the line feeding has proceeded to the desired extent, and means connected to said iin enpiece to release the carriage from said loclring means. v

llntn a typewriting machine, the combination with a platen, means to shift the same; and insane to effect letter-feeding movement of said platen, of means for effecting'line-spacing movement of the platen to advance a work sheet, means controlled by the advance of said work sheet by said line-spacing means, in either position to which the platen is shifted, for locking the platen against returning to begin a new line of Writing, means, including a finger-piece,

for releasin the platen from the control of said lettei eeding means, and means connected to said finger piece for releasing the platen from the control of said lock.

12. in a typewriting machine, the combination wvith a platen and a platen shiftframe, of a rail for shifting said platen and frame, a Wheel supporting said platen frame traveling on said rail, a rack on said rail, a latch closelyadgacena said Wheel and adapted to engage the said rack for locking said platen against travel, and means to operate said latch.

13. In a. type'writing inachine the conihination its a platen and. a platen shift frame, of a rail for shifting said platen and frame, a. wheel supporting said platen frame traveling on said rail, a rack on said rail, a locking latch closely adjacent said Wheel and movable into engagement with the rack for locking said platen againsttravel, and a handle for operating said latch at one end of the platen.

- 14. In a typeWrit-ing machine the combi-' paper-controlled trip located near one end nation with, a frame, a earriage movable back and forth thereon, an escapement mechanism, means disengageably connecting the carriage with said :escapement mechanism, and a platen frame com rlsmg a platen on the carnageand'shiftab e to different casev positions, of a paper-controlled lock to prevent retnrnmovement' of the carriage when the lower edge of a sheet nears the printing line, a device operative only when the platen. frame is." shifted to onetof its case-shift positions, torelease the look upon the disengagement of the carriage frolnits escapement mechanism, and a releasing arm connected with the leak and operated at the an engagement of the carriage from its escape vlnent when the platen frame is in the other of its case-shift positions.

16. In a typewriting machine, the combia case-shifting platen frame comprising a platen and mounted on the carriage, of a paper-controlled lock to prevent returnmovement of the carriage when the lower edge of a sheet nears the printing line, and devices operable by the disengagement of,

the carriage from its escapement, to release the look when the platen and platen frame;-

are in either of their case-shift positions.

HARRY CRUTCHLEY.

Witnesses 4 K. Fnmnronr,

B. Gomnnne.

flopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

